题目大意: N (1 ≤ N ≤ 1,000,000,000)牛群在遇到岔路时,若能分为恰好相差 K (1 ≤ K ≤ 1000)的两路,则持续分裂(假设会一直遇到岔路),否则停止开始吃草. Input * Line 1: Two space-separated integers: N and K Output * Line 1: A single integer representing the number of groups of grazing cows Sample Input 6 2…
题目 1619: [Usaco2008 Nov]Guarding the Farm 保卫牧场 Time Limit: 5 Sec Memory Limit: 64 MB Submit: 491 Solved: 218 [Submit][Status] Description The farm has many hills upon which Farmer John would like to place guards to ensure the safety of his valuable…
1619: [Usaco2008 Nov]Guarding the Farm 保卫牧场 Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 498 Solved: 223[Submit][Status] Description The farm has many hills upon which Farmer John would like to place guards to ensure the safety of his valuable milk…
P2907 [USACO08OPEN]农场周围的道路Roads Around The Farm 基础dfs,按题意递归即可. #include<iostream> #include<cstdio> #include<cstring> #define re register using namespace std; int n,k,ans; void dfs(int x){ )){//不能有半只奶牛(大雾) ++ans; return; }dfs((x-k)/); dfs…